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Science & Mathematics - 15 October 2007

[Selected]: All categories Science & Mathematics

Agriculture · Alternative · Astronomy & Space · Biology · Botany · Chemistry · Earth Sciences & Geology · Engineering · Geography · Mathematics · Medicine · Other - Science · Physics · Weather · Zoology

and if its poisionous? here are two links to the picture i have:

http://s41.photobucket.com/albums/e274/antsarmywife08/?action=view¤t=IMG_1685.jpg

http://s41.photobucket.com/albums/e274/antsarmywife08/?action=view¤t=IMG_1681.jpg

2007-10-15 06:36:25 · 4 answers · asked by california_ant 1 in Zoology

also what is the chemical reaction by which these components are joined?

2007-10-15 06:34:01 · 2 answers · asked by Anonymous in Biology

How do I Solve the following equation for by using the quadratic formula:

3x^2 - 3x - 7 = 0

(If there is more than one solution, separate them with commas.)

2007-10-15 06:31:48 · 7 answers · asked by shauna s 1 in Mathematics

I am talking about the colours!!!!!

2007-10-15 06:24:40 · 1 answers · asked by deepak.dhall 1 in Physics

2007-10-15 06:24:33 · 5 answers · asked by shruti d 1 in Mathematics

2007-10-15 06:20:41 · 6 answers · asked by stein_carrie 1 in Geography

A block has a mass of 5.87 kg and density of 496 kg/m^3. A piece of lead is placed on top of the block, adn the sytem floats in water. It is observed that 0.736 of the block's volume is submerged. The density o f lead is 11.3x10^3 kg/m3.

1. What is the mass of the lead?

2. The lead is removed from the top, and a different piece of lead is attached to the bottom of the block. Its mass is such that the same 0.736 of the block's volume is subermged. It shi mass greater than, less than or equal to the mass found in Question 1? Explain

Please help...I'm so lost.

2007-10-15 06:15:28 · 1 answers · asked by nita 1 in Physics

I have to make blueprints for my math class. I have to put down the perimeter and area for each room. Well, now I have a problem. The bathroom. How do I write the perimeter (has to be ? x ? format (say 5 x 10))

Here's a picture. http://i184.photobucket.com/albums/x253/calfan5/blueprints002.jpg

2007-10-15 06:14:44 · 4 answers · asked by Mako 7 in Mathematics

Say I have a helium balloon that has an envelope of 3800 cubic feet (to lift a payload of 200lbs at sea level atmospheric density and gravitational attraction). What will the maximum altitude (in feet) be for this craft before it achieves neutral bouyancy with the atmosphere? ALSO: At what point will the helium envelope no longer be able to contain the helium (in feet)? What if this envelope was rigid? (in this case I would include the airframe weight in with the overall payload weight)

2007-10-15 06:14:19 · 1 answers · asked by CaptainGarry 1 in Physics

2007-10-15 06:13:50 · 6 answers · asked by Anonymous in Chemistry

what is the name of the list of names in the science book for example co2 they tell you the name of it or h2o they tell u its water can someone tell me where i can get the list on the the computer for some website please

2007-10-15 06:12:25 · 2 answers · asked by Anonymous in Chemistry

This is a concept I truly don't fathom. Maybe because I've lost a lot of friends & am contemplating my own existance & don't prescribe to any religion.

2007-10-15 06:11:11 · 12 answers · asked by ChaliQ 4 in Astronomy & Space

an organic cofactor for an enzyme
an inorganic cofactor for an enzyme
a coenzyme
an inactive form of an enzyme

2007-10-15 06:02:39 · 2 answers · asked by kleo 4 in Chemistry

simple amides
monosubstituted amides
disubstituted amides
all would be equally soluble

2007-10-15 06:01:32 · 3 answers · asked by kleo 4 in Chemistry

If I have four equal measures for the sides of a base of a pyramid, how can I determine the height?

2007-10-15 06:00:34 · 2 answers · asked by d3wthed3w 1 in Mathematics

an ammonium ion and OH-
a salt
an amide plus HCl
an amide plus a carboxylic acid

2007-10-15 05:59:58 · 2 answers · asked by kleo 4 in Chemistry

I have a 230 Volt air compressor that I am borrowing, but i only have the standard 110 outlet.... How can i run this to restore my VW Bus? I dont want to burn down the house or anything.....

2007-10-15 05:59:39 · 3 answers · asked by radiant-designer 2 in Other - Science

what are its remidies

2007-10-15 05:58:36 · 3 answers · asked by dhaval p 1 in Medicine

neam of polymer and additive

2007-10-15 05:58:11 · 1 answers · asked by zahra r 1 in Chemistry

thanks.

2007-10-15 05:57:14 · 6 answers · asked by Fleur 3 in Medicine

A. 3 – 2i, 3 + 2i
B. 2, 2
C. 0
D. -1, -1
E. 1, -2

2007-10-15 05:56:36 · 2 answers · asked by new mommy 1 in Mathematics

alkene < aldehyde < alcohol < ketone
aldehyde < ketone < alkene < alcohol
alkene < ketone < alcohol < aldehyde
alkene < ketone < aldehyde < alcohol

2007-10-15 05:56:18 · 3 answers · asked by Anonymous in Chemistry

A calorimeter contains 31.0 mL of water at 11.0 degrees C. When 2.00 g of X (a substance with a molar mass of 44.0 g/mol) is added, it dissolves via the reaction

X(s) + H_2O(l)-----> X(aq)

and the temperature of the solution increases to 27.0 degrees C.

Assume that the specific heat and density of the resulting solution are equal to those of water [4.18 J/(g * degrees C}) and 1.00 g/mL] and that no heat is lost to the calorimeter itself, nor to the surroundings.

2007-10-15 05:56:10 · 4 answers · asked by Anonymous in Chemistry

CH2C(OH)(CH3)2
CH2CH(OH)CH2 (CH3)2
CH3OH
HOCH2CH2OH

2007-10-15 05:55:35 · 2 answers · asked by Anonymous in Chemistry

I know that it would occur on an ortho or para position (right?), but I don't know what ring or how to tell. Please explain it too.

2007-10-15 05:51:05 · 3 answers · asked by Kiko 3 in Chemistry

1

What is the Delta H_rxn for the following reaction:


CaO(s) +CO_2(g)---->CaCO_3(s)

Use the following reactions and given Delta H

Ca(s) +CO_2(g) +1/2 O_2(g)-----> CaCO_3(s)

Delta H= -812.8 KJ

2Ca(s) + O_2(g)----> 2CaO(s) Delta H= -1269.8 KJ

2007-10-15 05:51:04 · 2 answers · asked by Anonymous in Chemistry

I know that [0,5] is a closed interval and (0,5) is an open interval that excludes 0 and 5.
Do [0,infinity) and (0,infinity] make any difference?

2007-10-15 05:49:09 · 3 answers · asked by cidyah 7 in Mathematics

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